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Version History

  • 2.2.5: 2026-03-24

    • Align README quick start and learning paths with the current SUMMARY structure;
    • Clarify version marker and refresh front-page navigation guidance.

  • 2.2.4: 2026-03-03

    • Update to new version;
    • Add latest progress;
    • Support BFT consensus algorithm;
    • Add more details.

  • 2.0.0: 2026-01-12

    • Major update: Comprehensive revision of content to adapt to the technical landscape of 2026;
    • Add: Chapter 14 frontier trends (AI, DePIN, RWA);
    • Update: Bitcoin (Taproot, Ordinals, ETF) and Ethereum (PoS, Layer 2, Account Abstraction);
    • Update: Cryptography (Post-Quantum, ZK-SNARKs/STARKs) and Consensus Algorithms (PoS, HotStuff);
    • Optimize: Remove obsolete EOS chapter, integrate Hyperledger project status.

  • 1.8.6: 2026-03-04

    • Fix terminology "miner" -> "validator" on line 19 of 07_ethereum/design.md (context after Merge);
    • Add full Contract API example to 11_app_dev/chaincode.md (recommended over shim API);
    • Add Fabric Gateway chapter and Go language code examples to 10_fabric_op/sdk.md;
    • Update REST API deprecation notice in 11_app_dev/chaincode_example01.md (v0.6 only);
    • Update ordering node section in 13_fabric_design/design.md: add Fabric v3.0 BFT ordering service description;
    • Update BFT ordering performance characteristics in 13_fabric_design/performance.md;
    • Fix various external links: Burrow archive, gRPC/Go official website HTTPS upgrade, Remix HTTPS, Cello Git repo migration, Kafka document link correction;
    • Fix deprecated grpc.WithInsecure() -> insecure.NewCredentials() modern pattern in appendix/grpc.md;
    • Correct Vyper positioning description in 07_ethereum/concept.md (security alternative language rather than mainstream), fix double periods;
    • Update ZKML limitations description in 15_frontiers/ai_web3.md, reflecting 2025 technical progress;
    • Correct modular blockchain date format in 02_overview/classify.md.

  • 1.8.5: 2026-03-03

    • Comprehensive technical review by experts, fix 8 P0 critical errors and 8 P1 important issues;
    • Fix mining reward data (12.5 -> 3.125 BTC) in 06_bitcoin/mining.md, add halving history and hash rate data;
    • Fix PoS consensus context in 07_ethereum/concept.md, remove outdated "mining" expressions and ETH price references;
    • Fix duplicate rows in comparison table and UTXO spelling in 07_ethereum/design.md;
    • Update Solidity ^0.8.0 syntax and Geth --http command in 07_ethereum/smart_contract.md;
    • Fix Prometheus "push" -> "pull" method in 10_fabric_op/operation.md;
    • Fix Caliper/Grid URLs, Fabric 3.0 official release status in 08_hyperledger/project.md;
    • Fix Org2 anchor node variable name error in 09_fabric_deploy/start_local.md;
    • Fix import path error in appendix/golang/tools.md, update golint -> golangci-lint;
    • Update protobuf import path and protoc command migration in appendix/grpc.md;
    • Add Tendermint BFT chapter and six consensus algorithms comparison table in 04_distributed_system/bft.md;
    • Add new DeFi attacks (flash loans, MEV, cross-chain bridges, governance attacks) to 05_crypto/smart_contract_vulns.md;
    • Add MEV chapter in 12_web3/defi.md and governance attack case in 12_web3/dao.md;
    • Add Web3 challenges and reality chapter in 12_web3/intro.md;
    • Add ZKML limitations analysis in 15_frontiers/ai_web3.md;
    • Add sustainability risk analysis in 15_frontiers/depin.md;
    • Add core regulatory framework checklist (Reg D, MiFID II, MiCA, etc.) in 15_frontiers/rwa.md;
    • Add modular blockchain classification in 02_overview/classify.md;
    • Update 12 modern terms in appendix/terms.md;
    • Update Docker version recommendations (18.03 -> 24.0+), Kafka deprecation notes, Layer 2 performance context;
    • Update USDT/USDC market cap data, add time labels;
    • Improve Cello image version warning, Azure service shutdown notice.

  • 1.8.4: 2026-01-13

    • Comprehensive editorial review for publication readiness;
    • Fix Chinese monetary history TBD marker in 06_bitcoin/currency.md;
    • Fix Kafka migration TBD marker in 10_fabric_op/upgrade.md, noting Kafka is deprecated;
    • Verify all chapter content relevance (all updated to 2025).

  • 1.8.3: 2026-01-12

    • Comprehensive editorial review for publication readiness;
    • Fix structural issues: create missing 10_fabric_op/node.md, 12_web3/summary.md;
    • Fix SUMMARY.md links for golang appendix and add Web3 summary;
    • Update 07_ethereum/design.md: PoW→PoS consensus, Rollup-centric scalability;
    • Rewrite 07_ethereum/install.md for modern Geth installation;
    • Update Go/Docker versions in 08_hyperledger/contribute.md;
    • Remove TODO markers from 03_scenario/finance.md and 03_scenario/others.md;
    • Update outdated scenarios (2026 context): TradeLens (discontinued), JPM Coin (Onyx), IoT (DePIN);
    • Verify all 110+ image references (relative paths in _images/) and 120+ external links.

  • 1.8.2: 2026-01-11

    • Add new chapters: Layer 2, CBDC (with global overview), Web3/DeFi/DAO, Zero-Knowledge Proofs;
    • Rewrite NFT chapter with 2022-2025 market updates (Ordinals, NFTFi, SBT);
    • Rewrite Fabric chaincode lifecycle for v2.x (Package-Install-Approve-Commit);
    • Update Ethereum tools (Hardhat, Foundry, MetaMask);
    • Update Go language guide (Go Modules, GOPROXY);
    • Update Fabric install guide (install-fabric.sh, LevelDB vs CouchDB);
    • Fix outdated data: Bitcoin block reward, SHA-3 status, DeFi TVL, pizza BTC value;
    • Add version notice to Fabric architecture design chapter;
    • Update appendix resource links.

  • 1.8.0: 2026-01-10

    • Update Bitcoin history (ETF, halving) and stats;
    • Update Ethereum history (The Merge, Dencun upgrade) and features;
    • Update Hyperledger Fabric version (v2.5 LTS, v3.0) and project status;
    • Update BaaS platform info (IBM Blockchain Platform, Azure).

  • 1.7.0: 2025-12-28

    • Update outdated project status;
    • Fix typos and links.

  • 1.6.0: 2021-12-01

    • Fix expressions;
    • Fix typos.

  • 1.5.0: 2021-01-21

    • Add operation chapter;
    • Fix typos and polish expression.

  • 1.4.0: 2020-06-18

    • Refine deployment fabric with v2.0 version;
    • Update hyperledger community and projects;
    • Add operation guide and best practices.

  • 1.3.0: 2019-12-31

    • Add more crypto techniques;
    • Update go and related tools;
    • Update bitcoin project.

  • 1.2.0: 2018-12-31

    • Add common Golang tools and tips;
    • Update cryptography related knowledge, add bloom filters etc;
    • Update content of Hyperledger projects;
    • Update distributed system chapter.

  • 1.1.0: 2018-04-24

    • Update group signature;
    • Update evolution of blockchain and distributed ledgers;
    • Update latest progress of Bitcoin and Ethereum.

  • 1.0.0: 2017-12-31

    • Update BaaS design;
    • Update appendix section;
    • Correct some expressions.

  • 0.9.0: 2017-08-24

    • Correct wording;
    • Add content for fabric 1.0;
    • "Blockchain Principles, Design and Application" officially published.

  • 0.8.0: 2017-03-07

    • Improve application scenarios etc;
    • Improve distributed system technologies;
    • Improve cryptography technologies;
    • Update Hyperledger usage according to latest code.

  • 0.7.0: 2016-09-10

    • Improve consensus technologies etc;
    • Correct wording.

  • 0.6.0: 2016-08-05

    • Modify wording;
    • Add more smart contracts;
    • Add more business scenarios.

  • 0.5.0: 2016-07-10

    • Add content for Hyperledger project;
    • Add content for Ethereum project;
    • Add Lightning Network introduction and key technology analysis;
    • Add Blockchain as a Service (BaaS);
    • Add Bitcoin project.

  • 0.4.0: 2016-06-02

    • Add application scenario analysis.

  • 0.3.0: 2016-05-12

    • Add digital currency issue analysis.

  • 0.2.0: 2016-04-07

    • Add Hyperledger project introduction.

  • 0.1.0: 2016-01-17

    • Add blockchain introduction.